SiteStyleGuide

Unofficial A style guide made by SiteStyleGuide from irs.gov’s public web pages. Not affiliated with or endorsed by Internal Revenue Service. The real site is irs.gov ↗

Internal Revenue Service logo

Unofficial style guide

Internal Revenue Servicestyle guide

Internal Revenue Service’s website (irs.gov) uses Source Sans Pro for its headings and body text. Its palette is led by Deep Royal Blue (#00599C), Midnight Blue (#002D62) and Medium Sea Green (#28A745), with #1B1B1B text on #FFFFFF. Captured from the live site on 4 November 2026.

Website
irs.gov
Typefaces
Source Sans Pro, Arial
Palette
4 neutrals, 12 colours, 3 gradients
Captured
4 Nov 2026 · added by @sitestyleguide
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https://www.irs.gov/ Screenshot
Screenshot of the irs.gov homepage on a desktop screen
Screenshot of irs.gov on a 1440 px desktop screen, 4 Nov 2026.

Identity & metadata

What browsers, search engines and social cards show before anyone reaches the page, from the homepage’s <head>.

Title &
description

Page title
Internal Revenue Service | An official website of the United States government
▲ 78 / 60 characters
Meta description
Pay your taxes. Get your refund status. Find IRS forms and answers to tax questions. We help you understand and meet your federal tax responsibilities.
● 151 / 160 characters
Language
en

In search results

Internal Revenue Servicehttps://www.irs.gov/

Internal Revenue Service | An official website of the United …

Pay your taxes. Get your refund status. Find IRS forms and answers to tax questions. We help you understand and meet your federal tax responsibilities.

When shared

The image Internal Revenue Service shares with links

irs.gov

Internal Revenue Service | An official website of the United States government

Pay your taxes. Get your refund status. Find IRS forms and answers to tax questions. We help you understand a…

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Colour

Read from the site’s stylesheets and weighted by where each colour is used. Names are the nearest standard colour name. Click a swatch to copy its hex code.

Contrast is against the site’s text colour (#1B1B1B) and white, using WCAG 2 ratios: 4.5 for body text, 3 for large text.

Colour

Balance

How much each colour is used
  • White 34.6%
  • Off White 11.5%
  • Deep Royal Blue 11.3%
  • Near Black 10.5%
  • Midnight Blue 9.8%
  • Black 7.2%
  • Medium Sea Green 2.5%
  • Light Crimson 2.5%
  • Gold 2.3%
  • Cadet Blue 2%
  • Steel Blue 1.3%
  • Deep Dodger Blue 1.2%
  • Deep Crimson 1.1%
  • Light Royal Blue 0.8%
  • Light Dodger Blue 0.8%
  • Alice Blue 0.7%

By how often each colour appears in the site’s CSS, weighted by where (body, headings, buttons), not by area on the screen.

Neutrals

Text, backgrounds and structure

  • White

    HEX
    RGB
    HSL
    OKLCH
    CMYK
    0 0 0 0
    On text
    17.22:1 AAA
    On white
    —

    Background, text, border · .chosen-container-single .chosen-single, .ui-dialog .button

  • Off White

    HEX
    RGB
    HSL
    OKLCH
    CMYK
    0 0 0 9
    On text
    14.06:1 AAA
    On white
    1.23:1 Fail

    Background, border, text · .chosen-container-multi .chosen-choices li.search-choice, .chosen-container-multi .chosen-choices li.search-choice-disabled

  • Near Black

    HEX
    RGB
    HSL
    OKLCH
    CMYK
    0 0 0 89
    On text
    —
    On white
    17.22:1 AAA

    Text, border, background · .webform-submission-customer-service-feedback-portal-form fieldset.csfp-question, body

  • Black

    HEX
    RGB
    HSL
    OKLCH
    CMYK
    0 0 0 100
    On text
    1.22:1 Fail
    On white
    21.00:1 AAA

    Text, background, graphic · --bs-btn-hover-color, --bs-btn-active-color

Colours

Brand colours and accents, most used first

  • Deep Royal Blue

    HEX
    RGB
    HSL
    OKLCH
    CMYK
    100 43 0 39
    On text
    2.39:1 Fail
    On white
    7.22:1 AAA

    Text, background, border · #header .region-primary-navigation nav#block-pup-irs-barrio-mainnavigationmobile, form.webform-submission-form .webform-button--submit

  • Midnight Blue

    HEX
    RGB
    HSL
    OKLCH
    CMYK
    100 54 0 62
    On text
    1.27:1 Fail
    On white
    13.53:1 AAA

    Background, text, border · .fa-check-square:before, [id$=views-block-faq-highlights-faq-highlights-block].views-element-container .f

  • Medium Sea Green

    HEX
    RGB
    HSL
    OKLCH
    CMYK
    76 0 59 35
    On text
    5.50:1 AA
    On white
    3.13:1 AA large

    Background, text, border · --bs-btn-border-color, --bs-btn-disabled-border-color

  • Light Crimson

    HEX
    RGB
    HSL
    OKLCH
    CMYK
    0 76 69 14
    On text
    3.80:1 AA large
    On white
    4.53:1 AA

    Background, text, border · --bs-btn-border-color, --bs-btn-disabled-border-color

  • Gold

    HEX
    RGB
    HSL
    OKLCH
    CMYK
    0 24 97 0
    On text
    10.57:1 AAA
    On white
    1.63:1 Fail

    Background, text, graphic · --bs-btn-border-color, --bs-btn-disabled-border-color

  • Cadet Blue

    HEX
    RGB
    HSL
    OKLCH
    CMYK
    88 12 0 28
    On text
    5.66:1 AA
    On white
    3.04:1 AA large

    Background, text, graphic · --bs-btn-border-color, --bs-btn-disabled-border-color

  • Steel Blue

    HEX
    RGB
    HSL
    OKLCH
    CMYK
    94 19 0 43
    On text
    3.25:1 AA large
    On white
    5.30:1 AA

    Text · .pup-formsnpubs-header-search-block__sfield .button, #header .region-primary-navigation .block.block-views-exposed-filter-blockpup-si

  • Deep Dodger Blue

    HEX
    RGB
    HSL
    OKLCH
    CMYK
    86 43 0 0
    On text
    5.39:1 AA
    On white
    3.20:1 AA large

    Background, border · .node-preview-backlink:focus, [dir=rtl] .node-preview-backlink:focus

  • Deep Crimson

    HEX
    RGB
    HSL
    OKLCH
    CMYK
    0 91 68 18
    On text
    3.18:1 AA large
    On white
    5.42:1 AA

    Text, border · .pup-main-container div .pup-has-error__title, .fa-exclamation-triangle

  • Light Royal Blue

    HEX
    RGB
    HSL
    OKLCH
    CMYK
    95 57 0 1
    On text
    3.83:1 AA large
    On white
    4.50:1 AA

    Background, border · .form-check-input:checked, .form-check-input[type=checkbox]:indeterminate

  • Light Dodger Blue

    HEX
    RGB
    HSL
    OKLCH
    CMYK
    73 34 0 5
    On text
    6.11:1 AA
    On white
    2.82:1 Fail

    Background · .node-preview-backlink, [dir=rtl] .node-preview-backlink

  • Alice Blue

    HEX
    RGB
    HSL
    OKLCH
    CMYK
    15 5 0 4
    On text
    13.59:1 AAA
    On white
    1.27:1 Fail

    Background · .node-preview-container

Gradients

  • linear-gradient(#f4f4f4 20%,#f0f0f0 50%,#e8e8e8 52%,#eeeeee 100%)

  • linear-gradient(top,#f3f3f3,#e8e8e8)

  • linear-gradient(top,#e8e8e8,#d2d2d2)

Dark mode

Switched on by the site
Aa Light · #1B1B1B on #FFFFFF
Aa Dark · #DEE2E6 on #212529 · 11.85:1 AAA

  • Cool Off White

    #DEE2E6 · --bs-body-color

  • Near Black

    #1B1B1B · --bs-secondary-bg

  • Dark Sea Green

    #7ECA8F · --bs-success-text-emphasis

  • Light Coral

    #EA868F · --bs-danger-text-emphasis

  • Cornflower Blue

    #6EA8FE · --bs-primary-text-emphasis

  • Cool Dark Grey

    #495057 · --bs-light-border-subtle

  • Black

    #000000 · --bs-carousel-indicator-active-bg

  • Cool Near Black

    #212529 · --bs-body-bg

  • White

    #FFFFFF · --bs-emphasis-color

  • Cool Light Grey

    #A7ACB1 · --bs-secondary-text-emphasis

  • Sky Blue

    #74C7D4 · --bs-info-text-emphasis

  • Gold

    #FFDA6A · --bs-warning-text-emphasis

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Typography

Faces from Google Fonts are shown in the real thing. Others are licensed to the site, so they show in your device’s copy if you have one, or a stand-in if not.

Source Sans Pro

Aa 200 Aa 700

Source Sans Pro

Self-hosted · weights 200, 300, 400, 700 · headings, body, buttons · shown in a stand-in if you don’t have it

Aa 400

Arial

System font, or not loaded on this page · buttons · shown in a stand-in if you don’t have it

ABCDEFGHIJKLMNOPQRSTUVWXYZ
abcdefghijklmnopqrstuvwxyz
0123456789 ! ? & @ % $ – ’ “ ”

Type scale

From the site’s CSS
Heading 1 1.75rem · 28 px / 1.4285714286 weight 700

Internal Revenue Service

Heading 2 1.5rem · 24 px / 1.0833333333 weight 700

Internal Revenue Service | An official website …

Heading 3 1.1875rem · 19 px / 1.3684210526 weight 700

Internal Revenue Service | An official website …

Heading 4 1rem · 16 px / 1.3125 weight 700

Internal Revenue Service | An official website …

Heading 5 0.875rem · 14 px / 1.2 weight 700

Internal Revenue Service | An official website …

Heading 6 0.75rem · 12 px / 1.2 weight 700

Internal Revenue Service | An official website …

Body 1rem · 16 px / 1.5 weight 400 · Source Sans Pro

Pay your taxes. Get your refund status. Find IRS forms and answers to tax questions. We help you understand and meet your federal tax respo…

Paragraph 0.625rem · 10 px / 1.5 weight 700 · Source Sans Pro

Pay your taxes. Get your refund status. Find IRS forms and answers to tax questions. We help you understand and meet your federal tax respo…

Small 0.875em · 14 px

Pay your taxes. Get your refund status. Find IRS forms and answers to tax questions. We help you understand and meet your federal tax respo…

Button 0 · 0 px / 0 weight 400 · uppercase · Arial

Get started

Link 1em · 16 px / 20px weight 400 · none · Source Sans Pro

Read more about Internal Revenue Service

Sizes in use

Most common across the site
  • 40pxline 3.5rem · 17 rules
  • 28pxline 2.5rem · 8 rules
  • 24pxline 2rem · 16 rules
  • 20pxline 1.75rem · 19 rules
  • 19pxline 1.5 · 11 rules
  • 16pxline 1.5rem · 92 rules
  • 14pxline 1.25rem · 56 rules
  • 12pxline 16px · 20 rules

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Elements

The main button and link as the site’s CSS draws them, and the corner radii and shadows it uses most.

Elements

Button

Get started

form.webform-submission-form .webform-button--submit · #00599C · radius 4px

Link

Read our latest news today.

a · #00599C

Corner radius

  • 4px · 24×
  • 50% · 13×
  • 0.375rem · 13×
  • 2px · 12×
  • 3px · 7×

Shadows

  • 0 0 10px 0 #12636B
  • 0 0 0 0.25rem rgba(13,110,253,0.25)
  • 0 0 0.5rem 0 #12636B

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Layout

Breakpoints from the site’s media queries and the widths its content is held to, with how often each appears.

Grid

Breakpoints

480
767
768
991
992
1200
1300
1400

On a scale of 0 to 1440 px.

Content widths (max-width)

1440 px
1170 px
1140 px
840 px
680 px
370 px

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Notes

Plain checks on what was found. Worth fixing if you look after this site.

Notes

  • ▲ CheckThe title is 78 characters. Google usually cuts titles near 60, so the end may not show in results.

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Questions

Quick answers, from the same capture as the rest of this guide.

Questions

What font does Internal Revenue Service use?
Internal Revenue Service’s website uses one typeface: Source Sans Pro (headings and body text), self-hosted.
What are Internal Revenue Service’s brand colours?
The main colours on irs.gov are Deep Royal Blue (#00599C), Midnight Blue (#002D62), Medium Sea Green (#28A745), Light Crimson (#DC3545), Gold (#FFC107) and Cadet Blue (#17A2B8).
What colour is Internal Revenue Service’s text and background?
Body text is #1B1B1B on a #FFFFFF background.
Where is Internal Revenue Service’s logo from?
The logo shown in this guide was found on irs.gov’s homepage. For official logo files and usage rules, check Internal Revenue Service’s own brand or press page.
Is this Internal Revenue Service’s official style guide?
No. SiteStyleGuide made it from irs.gov’s public web pages on 4 November 2026, and isn’t affiliated with Internal Revenue Service. Members can refresh a guide after 90 days to pick up changes.

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Design tokens

Everything above as CSS variables, ready to paste into a project. Members can download the tokens as files for Figma (Tokens Studio), Style Dictionary and Tailwind.

Tokens

irs-gov-tokens.css

Download

Free with an account: sign up or sign in, and you’ll come straight back here.

/* irs.gov design tokens, from SiteStyleGuide (https://sitestyleguide.com/irs.gov) */
:root {
  /* Colours */
  --text: #1B1B1B;
  --background: #FFFFFF;
  --colour-white: #FFFFFF;
  --colour-off-white: #E8E8E8;
  --colour-near-black: #1B1B1B;
  --colour-black: #000000;
  --colour-deep-royal-blue: #00599C;
  --colour-midnight-blue: #002D62;
  --colour-medium-sea-green: #28A745;
  --colour-light-crimson: #DC3545;
  --colour-gold: #FFC107;
  --colour-cadet-blue: #17A2B8;
  --colour-steel-blue: #087591;
  --colour-deep-dodger-blue: #2491FF;
  --colour-deep-crimson: #D11242;
  --colour-light-royal-blue: #0D6EFD;
  --colour-light-dodger-blue: #419FF1;
  --colour-alice-blue: #D1E8F5;
  --gradient-1: linear-gradient(#f4f4f4 20%,#f0f0f0 50%,#e8e8e8 52%,#eeeeee 100%);
  --gradient-2: linear-gradient(top,#f3f3f3,#e8e8e8);
  --gradient-3: linear-gradient(top,#e8e8e8,#d2d2d2);

  /* Typefaces */
  --font-headings: 'Source Sans Pro';
  --font-body: 'Source Sans Pro';
  --font-buttons: 'Source Sans Pro';

  /* Type scale */
  --text-h1: 1.75rem;
  --leading-h1: 1.4285714286;
  --text-h2: 1.5rem;
  --leading-h2: 1.0833333333;
  --text-h3: 1.1875rem;
  --leading-h3: 1.3684210526;
  --text-h4: 1rem;
  --leading-h4: 1.3125;
  --text-h5: 0.875rem;
  --leading-h5: 1.2;
  --text-h6: 0.75rem;
  --leading-h6: 1.2;
  --text-body: 1rem;
  --leading-body: 1.5;
  --text-p: 0.625rem;
  --leading-p: 1.5;
  --text-small: 0.875em;
  --text-button: 0;
  --leading-button: 0;
  --text-a: 1em;
  --leading-a: 20px;

  /* Shape */
  --radius-1: 4px;
  --radius-2: 50%;
  --radius-3: 0.375rem;
  --radius-4: 2px;
  --radius-5: 3px;

  /* Layout (breakpoints can’t be used in media queries as variables; they’re here for reference) */
  --breakpoint-1: 480px;
  --breakpoint-2: 767px;
  --breakpoint-3: 768px;
  --breakpoint-4: 991px;
  --breakpoint-5: 992px;
  --breakpoint-6: 1200px;
  --breakpoint-7: 1300px;
  --breakpoint-8: 1400px;
  --max-width-1: 1440px;
  --max-width-2: 1170px;
  --max-width-3: 1140px;
  --max-width-4: 840px;
  --max-width-5: 680px;
  --max-width-6: 370px;
}

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Share

Links open each service’s own share page. Nothing from them loads here.

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Run irs.gov?

Add the badge to your site

Link to this guide from your own site, so your team, designers and agencies can find your colours and fonts in one place.

View our style guide on SiteStyleGuide 
<a href="https://sitestyleguide.com/irs.gov" title="Internal Revenue Service style guide on SiteStyleGuide"><img src="https://sitestyleguide.com/public/badge.svg" alt="View our style guide on SiteStyleGuide" width="200" height="44"></a>

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Also set in Source Sans Pro

Other websites using Source Sans Pro as their main typeface

Similar colours

Websites whose lead colour is closest to Internal Revenue Service’s

Captured from irs.gov on 4 November 2026. SiteStyleGuide isn’t affiliated with or endorsed by Internal Revenue Service; this guide describes the public website for reference.